Major Havoc - Blinking Buttons but doesn't Start - Error Code.

barakawins

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Major Havoc - Blinking Buttons but doesn't Start - Error Code.

Anyone see this screen? This is test mode. I see "P" in at the very top. Does that mean
a failed pokey? Also, What is Addapt Off? Is this normal?
 

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p = custom ic error, location 13q. my manual is a copy but i think that is where the pokey is, or quad pokey plugs into. 137324-1121.
 
Is it there? It should be if it was working. It looks like a daughtercard with a screw going through it...And 4 large ic's on top that card plugs into the socket at q13.

Pull em all, clean and reseat em.

Adapt off/on is a feature to ramp/and or decrease difficulty throughout the game. Has nothing to do with game function.

Does it play out of test mode?
 
Pokey

Well, this board is original and doesn't have a daughter card. The quad pokey is soldered into
the board. Look at the attached pic, lower left. It's the 4 blobs of black. Any replacment for
this?
 

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Those quad pokeys are hard to find. There is an adapter card that uses much more plentiful pokeys. Called the quad pokey eliminator board. I believe there were also some repro eliminator boards made before too.
 
FIXED!!!!!! Well, it's not the pokey that was the problem.

Fixed! Major Havoc up and running again! Power supply rebuilt and boom, game came back on! Regulated 5.1vdc at eproms and now works like a charm!
 
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